Essex · Heat pump installation
Air Source Heat Pumps in Great Waltham
Air source heat pumps for Great Waltham and the surrounding area: diagnosis first, then a fixed-price quote, the work and written records. Ask us for a fixed-price quote.
- An oil, LPG or gas boiler near the end of its life
- Wanting to stop using oil, LPG or gas for heating
- Not knowing whether a grant applies
What happens on the day
The work area is kept tidy throughout, with dust sheets down and offcuts and packaging cleared up. Any holes, fixings or cable routes are agreed with you before we drill. On site, it takes anything from a couple of days for air-to-air to the best part of a week for air-to-water with radiator changes. If a lane or gateway near Great Waltham is tight for a van, let us know and we’ll plan for it.
- You tell us about the home and what you want from a heat pump.
- We survey for heat loss and look at radiators, cylinder space and outdoor unit options.
- We explain which type of heat pump suits the home and whether a grant could apply.
- We install the heat pump and connect it up.
- The job ends with commissioning, the MCS certificate and a walk through the controls.
Preparing for the visit
- Give us access to the outside wall, roof or yard where the outdoor unit sits
- Tell us about any building rules, permits or sign-in
- Dig out any previous service or F-Gas records
Getting a quote
Photos are the fastest route to a quote: the inside and outside of the property where the work is, plus the rating plate of any unit already there. Add the address and what you’d like done, and simple jobs can often be priced without a visit.
Related advice
About our air source heat pumps in Great Waltham
Heat pumps run at lower flow temperatures than most boilers, so radiators may need to be larger to give out the same heat. We check each radiator against the room’s heat loss, and the quote sets it out. We are often asked to deal with not knowing whether a grant applies and checking emitters for a heat pump, on air-to-air heat pumps, air-to-water heat pumps and hot water cylinders.
Older and listed homes in villages like Great Waltham need extra care, and permitted development does not cover listed buildings, so consent comes first.
Some warranty terms depend on the system being serviced regularly by a qualified engineer. Where yours does, a regular service with us keeps that side in order, and every service is written up.
- Location
- Great Waltham (CM3)
- Wider area
- Essex
- Accreditations
- F-Gas certified company, NICEIC approved, MCS
- Typical price
- £8,000–£16,000 before the grant, 0% VAT on homes
- Pricing
- A fixed-price quote up front
- Phone
- 07833 053749
- Last updated
- 30 October 2026
Towns and villages near Great Waltham
What else we do in Great Waltham
Common problems we fix in Great Waltham
Some homes heated by electric heaters or storage heaters consider a heat pump instead. A survey shows whether a heat pump suits the property and what would need to change, and we explain the grant position for your home.
Look out for these signs:
- Checking eligibility for a heat pump grant
- An oil, LPG or gas boiler near the end of its life
- Deciding on the outdoor unit position
If your home is one of the older properties near Church of SS Mary and Laurence, the survey checks whether it’s listed or in a conservation area before the outdoor unit position is chosen.
Before booking anyone
- Proof of F-Gas company certification
- Whether the electrical work is done by a registered contractor, such as NICEIC approved
- Whether the price is fixed or an estimate
Why act early in Great Waltham
For eligible off-gas homes on oil or LPG, an extra £1,500 is on offer until March 2027. If that applies to you, it’s worth asking about sooner rather than later. Waiting rarely makes an air conditioning problem smaller.
Our prices page shows typical ranges, but your price depends on the job in front of us. For a fixed-price quote, give us a ring on 07833 053749 or use the quote form, and we’ll explain what it covers.
Why choose AirCon Doctor in Great Waltham
- Enquiries answered the same working day
- A site survey and a fixed-price quote
- F-Gas company certification
- 24/7 emergency line for breakdowns
Take a look at what air conditioning costs and our accreditations and certificates.
FAQs for Great Waltham
Is a heat pump in Great Waltham permitted development?
The answer turns on the property and where the outdoor unit would sit. The Great Waltham Conservation Area takes in the middle of Great Waltham. A heat pump on a house can be permitted development if it meets the conditions, including the MCS noise check, but not within the grounds of a listed building, and in a conservation area the outdoor unit cannot face a road. Where needed, we check with the local planning authority (for Great Waltham, typically Chelmsford council).
Can I get the Boiler Upgrade Scheme grant in Great Waltham?
Great Waltham is in England, where the Boiler Upgrade Scheme runs. The amount depends on the type of heat pump, and the survey confirms which applies. As an MCS certified installer, we apply for it on your behalf.
Do you work on all makes?
We install and work on the leading makes, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Send us the make and model if you have it.
How quickly will you reply?
You’ll hear from us the same working day. If it’s an emergency, ring the 24/7 line instead.
Will you work on another installer’s system?
Yes. Systems fitted by other companies are fine, on all the main brands. Tell us the make and model and send any paperwork you have.
How much time does a heat pump install need?
The work takes anything from a couple of days for air-to-air to the best part of a week for air-to-water with radiator changes. The survey lets us set a firm programme, so phone 07833 053749 or email us to arrange one.
Do you protect the property while you work?
Protection goes down first: dust sheets over floors and anything close to the work. Any drilling is agreed with you first, and we clear up the dust and offcuts when we finish.
Looking after your system
Looking after the system is mostly common sense. A few tips:
- Do not block radiators or indoor units with furniture
- Read the manufacturer’s warranty terms for your brand
- Store the MCS certificate and warranty documents together
Now and then in cold weather, the outdoor unit defrosts itself. It may give off steam or sound different for a few minutes, and that is normal.
A well-insulated home helps a heat pump, as lower heat loss means the system has less to do.
Homes in Great Waltham and heat pumps
About 49% of homes in and around Great Waltham have been built since 2000, according to Valuation Office Agency council tax records, and about 72% of households live in detached or semi-detached houses, according to the 2021 Census. Better insulated, newer homes are often a good match for a heat pump. Detached and semi-detached houses usually have room for the outdoor unit and a cylinder.
A heat loss calculation decides the size of heat pump your home needs.
Great Waltham is about 4 miles north of Chelmsford, in Essex. From the centre of Great Waltham to the outskirts, we cover air source heat pumps, from small jobs to large ones. 644 places in Essex are on our list. We also work in London, around 31 miles away.
All of CM3 is within our area, from busy streets to back roads. Our engineers work on Brook Mead, Cherry Garden Road and Chelmsford Road and the roads around them. Close by, we work in Breeds (1 mile south-west), Minnow End (1 mile south-east), Little Waltham (1 mile south-east), Broomfield (2 miles south-east) and Chignall Smealy (2 miles south-west). Larger places within reach include Chelmsford (4 miles south), Basildon (15 miles south), Braintree (8 miles north-east) and Harlow (15 miles west).
Landmarks near Great Waltham
Typical jobs here are in properties near The Beehive pub. The closest station to Great Waltham is Beaulieu Park station, roughly 3.7 miles south-east. Nearby you’ll also find Broomfield Hospital (1.4 miles south). For a walk, there’s Little Waltham Meadows.
A customer’s words
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath